ATE344693T1 - METHOD FOR SEPARATING LIQUID MIXTURES IN A FILM EVAPORATOR - Google Patents

METHOD FOR SEPARATING LIQUID MIXTURES IN A FILM EVAPORATOR

Info

Publication number
ATE344693T1
ATE344693T1 AT04716558T AT04716558T ATE344693T1 AT E344693 T1 ATE344693 T1 AT E344693T1 AT 04716558 T AT04716558 T AT 04716558T AT 04716558 T AT04716558 T AT 04716558T AT E344693 T1 ATE344693 T1 AT E344693T1
Authority
AT
Austria
Prior art keywords
film
liquid
heat
volatile
film evaporator
Prior art date
Application number
AT04716558T
Other languages
German (de)
Inventor
Eckhard Stroefer
Neven Lang
Ute Lichtfers
Ulrich Steinbrenner
Hans Hasse
Original Assignee
Basf Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Basf Ag filed Critical Basf Ag
Application granted granted Critical
Publication of ATE344693T1 publication Critical patent/ATE344693T1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
    • B01D1/222—In rotating vessels; vessels with movable parts
    • B01D1/223—In rotating vessels; vessels with movable parts containing a rotor
    • B01D1/225—In rotating vessels; vessels with movable parts containing a rotor with blades or scrapers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/30—Accessories for evaporators ; Constructional details thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/30—Accessories for evaporators ; Constructional details thereof
    • B01D1/305—Demister (vapour-liquid separation)
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/08—Polymerisation of formaldehyde
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/18—Copolymerisation of aldehydes or ketones
    • C08G2/24—Copolymerisation of aldehydes or ketones with acetals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Catalysts (AREA)

Abstract

A method for separating a liquid mixture containing readily-volatile and sparingly-volatile components involves using a film evaporator with a heat-exchange surface which is coated with material which catalyses the formation of readily-volatile component(s) in the liquid film. A method for separating a liquid mixture containing (A) readily-volatile and (B) sparingly-volatile components in a film evaporator by (i) producing a continuous stream of a liquid starting mixture, (ii) producing a liquid film from the mixture and bringing it into contact with a heat-exchange surface of the evaporator, and (iii) partly evaporating the film to give two gas streams rich in (A) and (B) respectively. In this method, (iv) the heat-exchange surface is coated with a catalytic material and (v) a chemical reaction in which (A) is/are formed is catalysed in the liquid film. An independent claim is also included for a film evaporator with a heat-exchanger wall which is coated with catalytic material.
AT04716558T 2003-03-04 2004-03-03 METHOD FOR SEPARATING LIQUID MIXTURES IN A FILM EVAPORATOR ATE344693T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10309392A DE10309392A1 (en) 2003-03-04 2003-03-04 Process for separation into liquid mixtures in a film evaporator

Publications (1)

Publication Number Publication Date
ATE344693T1 true ATE344693T1 (en) 2006-11-15

Family

ID=32864101

Family Applications (3)

Application Number Title Priority Date Filing Date
AT06112836T ATE421372T1 (en) 2003-03-04 2004-03-03 METHOD FOR SEPARATING LIQUID MIXTURES IN A FILM EVAPORATOR
AT04716558T ATE344693T1 (en) 2003-03-04 2004-03-03 METHOD FOR SEPARATING LIQUID MIXTURES IN A FILM EVAPORATOR
AT06112810T ATE424905T1 (en) 2003-03-04 2004-03-03 METHOD FOR SEPARATING LIQUID MIXTURES IN A FILM EVAPORATOR

Family Applications Before (1)

Application Number Title Priority Date Filing Date
AT06112836T ATE421372T1 (en) 2003-03-04 2004-03-03 METHOD FOR SEPARATING LIQUID MIXTURES IN A FILM EVAPORATOR

Family Applications After (1)

Application Number Title Priority Date Filing Date
AT06112810T ATE424905T1 (en) 2003-03-04 2004-03-03 METHOD FOR SEPARATING LIQUID MIXTURES IN A FILM EVAPORATOR

Country Status (10)

Country Link
US (1) US7414159B2 (en)
EP (3) EP1601435B1 (en)
JP (1) JP2006519174A (en)
KR (1) KR20050105270A (en)
CN (1) CN100391568C (en)
AT (3) ATE421372T1 (en)
DE (4) DE10309392A1 (en)
ES (2) ES2320587T3 (en)
PL (1) PL1601435T3 (en)
WO (1) WO2004078307A1 (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005028032A1 (en) * 2005-06-17 2006-12-21 Basf Ag Evaporation of thermally sensitive substances entails carrying out evaporation in evaporator with porously structured surface on product side
DE102008018966A1 (en) 2008-04-16 2009-10-22 Ticona Gmbh Process for the preparation of oxymethylene polymers and apparatus suitable therefor
CN102000437B (en) * 2010-09-03 2013-02-13 广东工业大学 Falling film evaporator with gas-liquid separating and membrane-distributing functions
CN102397708A (en) * 2010-09-15 2012-04-04 王仲明 Wall-scrapping film evaporator with scraper tube
CN102775284A (en) * 2011-05-13 2012-11-14 南京大学 Synthesis method of polyoxymethylene dimethyl ethers
EP2546272A1 (en) 2011-07-15 2013-01-16 Ticona GmbH Process for producing oxymethylene polymers
CN102240459B (en) * 2011-07-19 2014-05-28 徐建涛 Solution concentrator unit
CN103055526B (en) * 2011-10-24 2015-07-01 中国石油化工股份有限公司 Method for evaporating cyclohexanone-oxime
EP2807439B1 (en) 2012-01-27 2017-08-23 Carrier Corporation Evaporator and liquid distributor
SG11201610898TA (en) * 2014-07-03 2017-02-27 Covestro Deutschland Ag Process for purifying polycarbonate polyols and purifying apparatus therefor
CN105294406B (en) * 2015-11-18 2017-03-08 常州大学 One kind is with solid base CaO/ZrO2The method of catalyst synthesizing polyoxymethylene dimethyl ether
US10377689B2 (en) 2016-11-17 2019-08-13 OME Technologies GmbH Process for preparing polyoxymethylene dimethyl ethers from formaldehyde and methanol in aqueous solutions
DE102016222657A1 (en) 2016-11-17 2018-05-17 OME Technologies GmbH Process for the preparation of polyoxymethylene dimethyl ethers from formaldehyde and methanol in aqueous solutions
CN106669209A (en) * 2016-12-30 2017-05-17 天津横天生物科技有限公司 Scraper-type film concentrator
CN110494197B (en) * 2017-02-14 2022-07-15 科思创德国股份有限公司 Distributor device, in particular for falling film evaporators, and use thereof
US11173416B2 (en) 2019-03-29 2021-11-16 Julian Alexander Bublies Short-path evaporator
DE102019108212B4 (en) 2019-03-29 2021-10-14 PILODIST GmbH Short path evaporator
US11406974B2 (en) 2019-12-17 2022-08-09 Wiley Organics, Inc. Processing system and method
DE102020118386A1 (en) 2020-07-13 2022-01-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein Process for preparing polyoxymethylene dimethyl ethers
CN112755556B (en) * 2021-01-06 2022-03-18 扬州大学 Wiped film evaporator and using method thereof
CN113521773B (en) * 2021-06-08 2022-08-09 浙江嘉诚动能科技股份有限公司 Combined type methanol evaporator
CN114534654B (en) * 2022-02-21 2023-02-07 江苏道尔顿石化科技有限公司 Post-treatment device and method for passivation and devolatilization of polyformaldehyde powder

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2042451A (en) * 1933-04-12 1936-06-02 Du Pont Dehydration of formamide to produce hydrocyanic acid
US2581881A (en) * 1948-06-11 1952-01-08 Du Pont Aqueous formaldehyde distillation
DE1177126B (en) * 1962-02-21 1964-09-03 Wacker-Chemie G.m.b.H., München Process for the continuous production of methylal.
DE1260143B (en) * 1962-03-21 1968-02-01 Degussa Process for the production of paraformaldehyde
DE1251529B (en) * 1963-04-10
DE1291747B (en) * 1964-07-20 1969-04-03 Toyo Koatsu Ind Inc Process for the production of tetraoxymethylene
US3426041A (en) 1965-06-01 1969-02-04 Toyo Koatsu Ind Inc Process for producing tetraoxymethylene
DE4216846A1 (en) 1992-05-21 1993-11-25 Basf Ag Process for fixing large zeolitic and zeolite-analogous molecular sieve crystals to shaped articles
DE19607577A1 (en) 1996-02-29 1997-09-04 Basf Ag Mesh catalyst based on titanium or vanadium zeolites and inert mesh fabrics to accelerate oxidation reactions
US6193504B1 (en) * 1997-04-01 2001-02-27 Engelhard Corporation Portable rotary catalytic oxidizer systems
US6015875A (en) * 1998-08-11 2000-01-18 Catalytic Distillation Technologies Process for making acetals
DE19925870A1 (en) * 1999-06-07 2000-12-14 Basf Ag Process for converting a solution containing a mixture
DE10036602A1 (en) 2000-07-27 2002-02-14 Cpc Cellular Process Chemistry Microreactor for reactions between gases and liquids
US6610865B2 (en) * 2001-08-15 2003-08-26 Degussa Ag Process for the epoxidation of olefins
AU2002343014A1 (en) * 2001-10-29 2003-05-12 Chart Heat Exchangers Lp Heat exchangers
DE10248599A1 (en) * 2002-10-17 2004-04-29 Degussa Ag Process for obtaining a gaseous phase from a liquid medium and device for carrying it out

Also Published As

Publication number Publication date
EP1688168B1 (en) 2009-03-11
DE10309392A1 (en) 2004-09-16
ATE424905T1 (en) 2009-03-15
EP1704905A1 (en) 2006-09-27
US20070106096A1 (en) 2007-05-10
DE502004008929D1 (en) 2009-03-12
DE502004009159D1 (en) 2009-04-23
EP1601435A1 (en) 2005-12-07
EP1688168A1 (en) 2006-08-09
EP1601435B1 (en) 2006-11-08
JP2006519174A (en) 2006-08-24
ES2318675T3 (en) 2009-05-01
CN100391568C (en) 2008-06-04
US7414159B2 (en) 2008-08-19
ATE421372T1 (en) 2009-02-15
WO2004078307A1 (en) 2004-09-16
CN1756579A (en) 2006-04-05
ES2320587T3 (en) 2009-05-25
PL1601435T3 (en) 2007-04-30
EP1704905B1 (en) 2009-01-21
DE502004001955D1 (en) 2006-12-21
KR20050105270A (en) 2005-11-03

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